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Trinity Force ATLAS AR-15 Keymod Free Float Rail – 12 inch


For your safety, Trinity Force recommends this part be installed by a competent, qualified gunsmith/installer with an understanding of the weapon platform that the part is being installed on. Always make sure the firearm is unloaded and pointed in a safe direction when working.

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Trinity Force ATLAS AR-15 Keymod Free Float Rail

The Atlas AR15 Keymod Free Float Rail features a slim profile for improved ergonomics and weight savings. Additionally, with a static top rail optimized for mounting optics and multiple contact points for a hex key mounted modular rail system on the sides and bottom, the Atlas Rail is the ideal solution for any AR15 owner looking for speed and mission flexibility. It uses a hex key secured barrel nut clamp and proprietary barrel nut for even more weight savings and easy installation.

The Atlas AR15 Keymod Rail features a non-indexing barrel nut and clamping system (FREELOK) that utilizes free floating tabs to secure the rail to the receiver. Additionally, FREELOK provides both frictional and mechanical locking forces to create a rock-solid bond between the rail and barrel nut.


Weight 13.8 oz
Length 12 in
Width 1.57 in
Height 2.36 in
Inner Diameter 1.3 in
Type of Aluminum 6061-T6
Coating Type Hard Coat Anodized Finish
Interface Type Keymod MIL-STD-1913